Jusqu-a Airmail Markings- A Study Ian Mcqueen [upd]

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His work helped collectors distinguish between genuine postal markings and later additions. Why "Jusqu’à" Markings Were Used Jusqu-a Airmail Markings- A Study Ian McQueen

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(meaning "until" or "as far as") represents a critical chapter in 20th-century aerophilately. Ian McQueen’s seminal study remains the definitive guide to these markings, which were applied to mail where airmail service was only paid for or available for a specific portion of the journey. This paper outlines the functional necessity, typographic variety, and historical significance of these markings as documented by McQueen. 1. The Functional Necessity of "Jusqu’à" This book is often sought after by specialists